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Suppose a, b, g and d are the interior ...

Suppose a, b, g and d are the interior angles of regular pentagon, hexagon, decagon and dodecagon, respectively, then the value of Icos a sec b cos g cosec dl is

A

2

B

1

C

1

D

`1.5`

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The correct Answer is:
B
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AAKASH SERIES-PROPERTIES OF TRIANGLES-ADDITIONAL PRACTICE EXERCISE (LEVEL 1 (MAIN)) (Straight Objective Type Questions)
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  2. In triangle ABC, line joining the circumcenter and orthocenter is para...

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  3. A variable triangle ABC is circumscribed about a fixed circle of unit ...

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  9. Suppose a, b, g and d are the interior angles of regular pentagon, he...

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  10. In a DeltaABC,b=12 units, c=5 units and Delta=30 sq.units. If d is the...

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  13. Three circles touch one another externally , The tangents at their poi...

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  14. In DeltaAEX, T is the midpoint of XE, and P is the midpoint of ET. If ...

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  16. A triangle has sides 6,7 and 8. The line through its incentre parallel...

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  18. In a triangle ABC, D, E are two points on the side BC such that BD = D...

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  19. If a = 18, b=24, c= 30 and if l = r2- r1 , m = r3 - r2 , n= r3 - r1 ...

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